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Wowhead: World of Warcraft Databaseen-US5Fri, 18 Aug 2017 00:12:05 -0500http://www.wowhead.com/news=220993/siege-of-orgrimmar-flex-underhold-open-10-1-new-bosses-and-loot
Flex mode does not require players to have a certain item level to zone in, but it does require you to queue with a premade group. You can have anywhere between 10 and 25 players.